Camden CM-3000/34N Green Illuminated Mushroom Push/Pull Button
The Camden CM-3000/34N is a 1 5/8" diameter green illuminated mushroom-style push button designed for access control and door strike applications in high-traffic commercial and institutional environments. Operating at 30VDC with UL/CSA approval for 6-amp switching, this button provides visual feedback in low-light conditions and integrates directly into electric lock, electromagnetic lock, and electric strike control circuits. The heavy-duty 1/4" brushed aluminum faceplate supports wall, pole, and frame mounting, making it suitable for building entrances, hospital corridors, secure exits, and any scenario requiring durable tactile control with integrated illumination.
Key Features
- Green LED Illumination: 1 5/8" mushroom head with integrated green LED. Visual confirmation in dark entry corridors and low-light exits reduces user confusion and improves traffic flow.
- 30VDC Rated, 6-Amp Switching: UL/CSA approved for standard access control voltage. Compatible with electric locks, electromagnetic locks, and electric strikes without external relay modules.
- Push/Pull Mechanism: Spring-return or maintained contact options available. Accommodates both momentary door-release scenarios and continuous unlock functions.
- Heavy-Duty Aluminum Faceplate: 1/4" thick brushed aluminum construction. Resists tampering and sustains repeated use in institutional and healthcare environments.
- Stackable Contact Design: Supports up to 6 distinct functions (lock release, bypass, timed unlock, request-to-exit, automatic door trigger). Single button controls multiple access logic branches.
- Color-Coded Spade Terminals (18 AWG): Simplifies integration into standard control panels and field wiring. No crimping or soldering required—direct connection to strike control relay modules.
- Multiple Mount Configurations: Surface, flush, and mullion (narrow stile) mounting options via standard hardware. Pedestal, wall, or door-frame installation supported.
- Brushed Aluminum Finish (Standard): Corrosion-resistant; custom duranodic (US 40) finish available for coastal or high-humidity environments.
The CM-3000/34N integrates seamlessly into any 30VDC access control panel. Color-coded spade terminals eliminate field termination errors and reduce installation time. The stackable contact architecture allows a single physical button to control multiple door functions—for example, unlock the strike, trigger an automatic door operator, and log an event—without additional relay logic. This is especially valuable in hospitals and secure facilities where a single "exit" button must trigger multiple downstream actions.
In high-traffic environments, the green illumination serves dual purposes: it guides users to the exit in low-light conditions and provides immediate tactile feedback that the button was registered. Unlike toggle switches or keypad entries, a mushroom button requires deliberate contact—reducing accidental activations in bustling corridors. The 1/4" aluminum plate absorbs impact and UV degradation, extending service life in outdoor vestibules and unconditioned spaces.
Deployment considerations focus on voltage confirmation and contact configuration. Verify your access control panel supplies 30VDC before ordering; panels supplying 12VDC or 24VDC will not trigger the button reliably. If your strike requires held (latching) unlock rather than momentary release, confirm that the panel's relay can maintain the spade-terminal connection—many older panels require an interposing relay for this scenario. Test button function after installation; the green LED serves as a basic diagnostic indicator that power is reaching the button.
The CM-3000/34N carries manufacturer warranty coverage and is sourced direct from Camden's North American channel. No grey-market, no parallel imports. Datasheet and wiring diagrams are available on request to support integration planning and panel design. This button is the right choice for facilities requiring durable, maintainable, ADA-compliant emergency exits and access points where visual feedback and tactile simplicity take priority over electronic credential verification.
Marty AllisonPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
In our experience, the CM-3000/34N occupies a specific and durable niche: hardwired request-to-exit buttons and emergency release points where reliability trumps feature density. We've deployed hundreds of these across hospitals, office parks, and industrial facilities, and the consistent feedback is that they "just work." The green LED is far less flashy than a modern touchless sensor or RFID reader, but in a 3 a.m. fire evacuation, a button that glows green and requires no batteries, no DHCP, and no cloud connectivity is the right tool. The 1/4" aluminum faceplate is the real differentiator—it laughs off impact from gurneys, wheelchairs, and panicked foot traffic. On a 500-door hospital retrofit, the cost-per-door and mean-time-between-failure of the CM-3000/34N consistently outperforms electronic card readers or keypads in high-wear locations.
Technical Highlights:
- 30VDC, 6-Amp Switching Capacity: Native compatibility with standard building access control panels eliminates the need for intermediate relay modules or voltage converters. Direct spade-terminal wiring reduces BOM cost and installation labor by 20-30% compared to low-voltage (12/24VDC) alternatives that require step-up relays.
- Stackable Contact Architecture (Up to 6 Functions): One physical button can address lock strike, door operator, and auxiliary alarm/logging functions through a single contact stack. Multi-function logic is handled by your control panel relay logic, not by wiring complexity.
- 1/4" Brushed Aluminum Faceplate: Withstands vandalism, impact, and repeated daily use in institutional environments without cosmetic or functional degradation. Resists corrosion better than painted steel; custom duranodic finish available for coastal salt-spray or pharmaceutical cleanroom environments.
- Spring-Return or Maintained Contact Modes: Spring-return (momentary) is typical for "exit now" scenarios; maintained contact is rare but available for specialized timed-unlock sequences. Confirm your panel's relay behavior before ordering, as some access control systems expect momentary input only.
- Color-Coded Spade Terminals (18 AWG): Eliminates field termination errors and integrates directly into legacy control panels without soldering or crimping. Single termination point per function reduces cross-talk and signal noise on shared 30VDC rails.
Deployment Considerations:
- 30VDC voltage requirement is non-negotiable. Older 12VDC or 24VDC panels require an interposing relay or step-up converter—if your site is mixed-voltage, prototype the integration before bulk ordering. We've seen integrators spec this button on a 24VDC system by mistake, resulting in button non-response and emergency exit failures.
- Spade-terminal connection requires proper strain relief and conformal coating in humid environments (hospitals, cleanrooms, coastal facilities). Use adhesive cable ties and sleeving to avoid corrosion creep at the terminal block. In outdoor vestibules, consider silicone potting compound around the terminal block to exclude moisture.
- Green LED is a visual diagnostic, not a hardened fault indicator. If the LED is off but the button is mounted, the 30VDC rail is dead—check the panel's main supply fuse and relay status before troubleshooting the button itself. In retrofit scenarios, verify continuity on existing strike wiring before swapping old buttons.
- Mushroom head design means the button occupies approximately 2.5" of wall or frame space (faceplate + button profile). Confirm clearance around existing hardware, signage, and door hardware before installation. In narrow stile (mullion) mounting, the button must sit flush or slightly recessed to avoid snagging on passing traffic.
- Surface mounting on drywall or concrete is straightforward; flush mounting into a steel or aluminum frame requires accurate hole sizing and backing hardware. Pedestal mounting in outdoor vestibules should use stainless steel fasteners and weatherproof junction boxes to prevent water ingress into the spade-terminal connection.
The CM-3000/34N is the right choice for system architects and integrators specifying emergency exits, request-to-exit buttons, and durable access control points where simplicity, cost-per-door, and mean-time-between-failure are the primary metrics. Its longevity in institutional settings is unmatched by electronic alternatives at equivalent price. Explore the full Camden catalog for complementary strike hardware and control-panel integrations.
